Daniel wilde



(No Model.)

D. WILDE.

B-AGASSB FURNACE.

N0.-284,1 O1. Patented Aug. 28, 1883.

. fuel, the material being fed from the front.

UNrrEn STATEs ATENT il-rricn.

DANIEL \VILDE, OF WVASHINGTON, IOXVA.

BAGASSE-FURNACE.

SPECIFICATION forming part of Letters Patent No. 284,101, dated August 28, 1883.

Application filed July 3, 1882. (No model.)

To all whom it may concern..-

Be it known. thatI, DANIEL WVILDE, a citizen of the United States of America, residing at Washington, in the county of Washington and State of Iowa, have invented certain new and useful Improvements in Bagasse-Furnaces, of whichthe following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to the class of furnaces known as bagasse; and the object is to burn wet fuel-such as sugar-cane stalks, wet tanbark, and other refuse of .manufacturing establishments or farms, which would without such. furnace be waste. Heretofore bagassefurnaces have been constructed to burn wet In such furnaces the fuel becomes conglomerated and packed together to such an extent as to prevent the heat from passing through for drying it as well as to prevent the passage of the products of combustion from the furnace, and hence the heat is not utilized. To avoid this difficulty, and to dry the fuel and to utilize its heat, is a further obj eet of my in vention; and to this end it consists in providing the furnace with an elongated fuel-chamber. Said chamber may be surrounded by heating fines or conduits, through which the heat passes on its way to the uptake, this method being pursued until the fuel is .dry,

when the products of combustion are brought in contact with an evaporating-pan for evaporating saccharine juices, a damperbeing used for the purpose.

It further consists, in combination with a drying-chamber, of a feeding device, said feeding apparatus being adapted to slide longitudinally for a certain distance upon the floor of the drying-chamber, it being provided upon one of its sides with upwardly-projecting teeth, resembling those of saw-teeth, and acting upon the same principle-that is to say, that the teeth incline backward from the cuttingpoint in saw-teeth to clear them, while these teeth incline backward from the pushingpoint for the same purpose; and it further consists in minor details of construction, as will hereinafter be more fully described.

Referring more particularly to the drawings, and the letters of reference marked there on, similar letters indicating similar parts, Figure 1 represents a front and side elevation of the furnace in perspective, and also a top floor view of the evaporatingpan, a por tion being broken away. Fig. 2 shows avertical longitudinal section, clearly showing the feeding device in position. Fig. 3 shows a horizontal plan view beneath the pan, clearly showing the position of the heating-fines and the direction of the hot gases in their course while serving to dry the wet fuel; and Fig. 4, a transverse section taken on line at x, 3, across the furnace.

A is the main body of the furnace; 13, the evaporating-pan; O, the fire-box, and D the grate-bars. The space below the evaporatingpan is divided into two lines, E F, the flue E being an escape-flue for the products of combustion, and the flue F for the feeding and drying of fuel.

. Below the feeding and drying flue or chain ber is a series of flame-fines, G- H, through which the hot products ofcombustion are forced to p ass. These flame-fines are preferably made L shape in crosssection, so that a verylarge heating-surface is afforded to the drying-chamber. WVhen the process of drying is going on, the damper ((-is closed. The flame then is compelled to dive on one side of the drying-chamber, passing under its bottom, then passing backward to a return rear flue-connection, then back along the side and under the other side of the drying-chamber, when it ascends to the up take. The main flue beneath the drying-chamber is divided by a mid-feather, I, which extends nearly to the end of the flue, by means of which the return-flue J is formed.

Within the drying-chamber I locate a feed ing apparatus, K, provided with a "series of pushers resembling saw-teeth and operating upon like principle-that is, when they push the fuel to the end of their stroke, the incline of the teeth allows their ready withdrawal therefrom without drawing the fuel back with them. The drying-chamber projects outside of the rear end 'of the furnace-walls, and forms a hopper-like trough, c, for the reception of the fuel. This hopper or trough is provided with a lid, b, so that when the drying-chamber is filled the lid is closed, so as to prevent too much cold air from entering to the detriment of the heating or drying process of the fuel in the chamber.

Connected to the feeding apparatus is a com-l pound crank-lever or other device by which the feeder is reciprocated in pushing back the fuel to the furnace.

orating-pan, so that he can control the quantity of fuel fed to the fire as he may desire.

I am aware of the English Patent No. 7,858, of 1838, the construction and arrangement of its various parts, and therefore do not claim the same, broadly; but

This crank is operated I by the'attendant, who also attends to the evap- What I do claim is- K 1. In a furnace for burning fuel, the flues E, G, and H, formed as described, the trunk F, and feeding apparatus K, adapted to reciprocate longitudinally therein, substantially as shown and specified. v

2. In afurnace for burning wet-fuel, the (3011b bination of the drying-chamber and feeding apparatus, the fines E and fiues G H, and damper a, all arranged as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL WILDE.

Witnesses:

A. S. FOLGER, J. J. KELLOGG. 

